Adrenal gland, Biology

Assignment Help:

ADRENAL OR SUPRARENAL GLANDS (GLANDS OF EMERGENCY) -

  • These are paired structures located on the top of the kidneys.
  • Each adrenal gland has two parts external adrenal cortex and internal adrenal medulla.
  • The adrenal cortex is derived from the mesoderm of the embryo & adrenal medulla from the ectoderm.
  • The cortex is surrounded by a fibrous capsule.
  • The adrenal cortex is differentiated into three regions or zones -

             (i) Outer, thin zona glomerulosa (15% of the gland)

             (ii) Middle, thick zona fasciculata (50% of the gland)

             (iii) Inner, thin zona reticularis (7% of the gland).

  • The cells of the zona fasciculata and zona reticularis contain vitamin C (ascorbic acid).

655_adrenal gland.png


Related Discussions:- Adrenal gland

To show that growing seeds take in oxygen, To show that growing seeds take ...

To show that growing seeds take in oxygen Cork up one end of a tube, having first placed inside some damp cotton wool and some mustard seeds. Immerse the open end in dilute ca

Microbodies, Microbodies Peroxisomes and glyoxysomes are microbodies fo...

Microbodies Peroxisomes and glyoxysomes are microbodies formed from ER which superficially resemble the lysosomes. Peroxisomes are spherical bodies limited by a single membrane

Which is the muscle tissue that moves the bones, Q. Which is the kind of mu...

Q. Which is the kind of muscle tissue that moves the bones? The bones are moved by the skeletal striated muscles these muscles are voluntary (controlled by volition).

Define specialized nutritional formulations for chd, Define Specialized Nut...

Define Specialized Nutritional Formulations for CHD? Achieving calorie and protein requirements with restricted fluid intake, you would realize, is a formidable challenge. Hig

Ecology.., examples of pyramid of energy

examples of pyramid of energy

What are some evolutionary advantages of animals, What are some evolutionar...

What are some evolutionary advantages of animals with complete digestive tube? The complete digestive tube permits animals to continuously feed themselves without waiting for r

What is the significance of elastic capsule chromatophore, What is the sign...

What is the significance of Elastic capsule chromatophore? Specialized pigmented cells on surface of the cephalopods that, by changing their shape, expose differing amounts of

Does rna molecule have two polynucleotide chains like dna, Does RNA molecul...

Does RNA molecule have two polynucleotide chains like DNA? Only DNA has two polynucleotide chains. RNA is produced by just one polynucleotide chain. Nucleic Acid Review - Im

Biota of estuaries, Biota of Estuaries The estuarine community is a m...

Biota of Estuaries The estuarine community is a mixture of three components: Marine Fresh water and Brackish water but overall estuarine div

Phylum protozoa, classification of organisms in phylum protozoa according t...

classification of organisms in phylum protozoa according to their class,order,family,genus,species.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd